Medicinal spa created with the discharge from a geothermal energy plant.

This remote eatery and museum is preserved as a time capsule of a small Icelandic fishing town.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

At this museum in Iceland, visitors can sample fermented Greenland shark.

A popular Icelandic children's story comes to life inside this cave.

This monument to one of the largest science fiction games of all time bears the names of hundreds of thousands of players.

On an island south of Iceland, a large volcanic rock formation resembles an elephant.

A replica of the decorated wooden pillars Viking sailors threw overboard when finding new places to establish a settlement.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

This secret garden has bloomed into London's most unique hub of urban creativity.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

London's first edible insect farm offers facility tours and cooking classes.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

A clock designed to run with perfect accuracy for 10,000 years.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

A mysterious artist-run cabinet of curiosities and library.

This 1920s Dutch barge is now a floating bookstore.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

A tongue-in-cheek arcade where the games are based on everyday life.

A kaleidoscopic warehouse-maze of handmade neon signs.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.